window.addEvent('domready', function() {
	/* set active section
	var nav = $$('.nav a');
	nav.each(function(element) {
		var section = element.toString().substr(0, element.toString().lastIndexOf('/'));
		if(section != "" && element.toString().indexOf('index.php') == -1 && location.href.indexOf(section) != -1) {
			element.className='nav_active';
		}
	});
	// set active page
	var sub_nav = $$('.sub_nav a');
	sub_nav.each(function(element) {
		if(element == location.href) {
			element.className='active';
		}
	});*/
	// urchinTracker
	var links = $$('.content_section a');
	var fileformats = Array('pdf', 'mp3');
	links.each(function(element) {
		if(element != null) {
			var n = element.toString().match(/([^\/\\]+)\.(\w+)$/);
			if(n != null) {
				var validfileformat = false;
				for(var i=0; i<fileformats.length; i++) if(fileformats[i] == n[2]) validfileformat = true;
				if(validfileformat) {
					element.addEvents({
						click: function() {pageTracker._trackPageview(unescape(this.href));}
					});
				}
			}
		}
	});
});